Clover-safe herbicide can hit docks hard
Clover-safe herbicide can hit docks hard
A NEW clover-safe grassland herbicide which can control docks and a selection of broad-leaved weeds has been approved for use in both rotational and permanent swards.
The product Squire (amidosulfuron) is the first sulfonylurea-based herbicide to be UK approved for control of all dock species and it is white clover safe, says manufacturer Aventis.
It can control docks from seedling stage through to full rosette when applied between February and June, adds the company.
"In newly-sown leys, Squire can be applied when grass reaches the three-leaf or first tiller stage and white clover has 1-2 trioliate leaves," says Aventis Gordon Anderson-Taylor.
Squire is also said to have a predominantly contact mode of action, so is suitable for use in a wide range of conditions.
Aventis believes each 1% of dock cover reduces grassland output by 1%, and they have 35% less feed value than grass. "And Squire only has a post-application interval of seven days before grazing," adds Dr Anderson-Taylor.
Squire is available as a low volume water dispersible granule (WDG) and is packed in 240g screw-cap bottles with a measuring device.
One 240g bottle is sufficient to treat 2.7ha (6.6 acres) at the maximum recommended rate of 90g/ha. *